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Toward Zero Waste Mining: Circular Economy of Copper Slags [PDF]
Global ChallengesOnly 8.6% of the global economy follows the principles of the circular economy. Mining and metal extraction processes generate over 90% of global waste, with slags being the major contributor to waste accumulation.
Aleksandar Mitrašinović +2 more
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Analysis of Spinel Based Inclusions During the Last Stage of The Steelmaking Process of SAE 52100 [PDF]
Materials Research, 2020 Al2O3 (alumina) and MgO·Al2O3 (spinel) inclusions cause valve obstruction (clogging) in continuous casting and can deteriorate the quality of the final product. In this context, industrial heats of the bearing steel SAE 52100 was examined.
Julio Aníbal Morales Pereira +4 more
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Lightweight geopolymers made of mineral wool production waste [PDF]
Инженерно-строительный журнал, 2020 Reducing industrial slags and developing building materials on its basis is one of the priority areas for the development of the construction industry. The problem of obtaining cellular concrete from mineral wool production waste (lightweight geopolymers)
V.T. Erofeev +4 more
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Study of the physical properties of aluminothermic slags for the recovery of uranium and thorium
Brazilian Journal of Radiation Sciences, 2021 NORM minerals generate, after metallurgical processing, radioactive slags that can be controlled by CNEN. Thus, it is necessary to establish a reprocessing route to make the material exemption. The route necessarily passes through the characterization of
VANDERLEI VILAÇA MOURA +2 more
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Technogenic anhydrite binder for high-strength concrete
Magazine of Civil Engineering, 2021 Currently the global trend is to expand the range of construction materials produced using resource-saving technologies that do not generate CO2 emissions. An important role in this is given to gypsum-anhydrite binders and concretes which can be obtained
Ponomarenko Alexander
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GAS SLAG REACTION KINETICS IN SLAG CLEANING OF COPPER SLAGS [PDF]
Canadian Metallurgical Quarterly, 2006 Abstract Measurements of the rate constant of CO2 dissociation on the surface of molten FexO-SiO2-Al2O3-Cu2O slag have been made by using the 13CO2-CO isotope exchange technique as a function of temperature and imposed equilibrium CO2/CO ratio. It is shown that the apparent first-order rate constant remains fixed with Cu2O content from 1 to 10 wt% at ...
E. CHEN, K. COLEY
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Applied Sciences, 2021 This research investigated the possibility of using metallurgical slags from the copper and lead industries as partial replacement for cement. The studied slags were fayalitic, having a mainly ferro-silicate composition with minor contents of Al2O3 and ...
Asghar Gholizadeh Vayghan +7 more
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Characteristics of Selected Physical and Mechanical Properties as well as Chemical Composition of Aggregates based on: Steel Slags, Porphyry and Diabase [PDF]
Archives of Civil Engineering, 2020 This paper presents the results of tests of selected physical and mechanical properties as well as the chemical composition of two types of natural aggregates: porphyry and diabase, as well as artificial aggregate based on steel slags.
Iwona Jonczy +3 more
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Revista Ingeniería de Construcción, 2020 Portland cement is considered an excellence building material. This is due mainly to its high performance, its good quality/price ratio and the raw materials from which it is made can be found almost everywhere in the world.
M. Torres-Carrasco, F. Puertas
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Effect of Al2O3, MgO, and CuOx on the dissolution behavior of rhodium in the Na2O-SiO2 slags [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2013 Aiming to optimize rhodium recovery in the high temperature recycling process by minimizing rhodium loss into slags in an oxidizing atmosphere by controlling slag composition, the effects of representative slag components, such as Al2O3, MgO, and CuOx,
Wiraseranee C. +3 more
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